var timer;

function ecoPlay()
{
	var target = document.getElementById('target');
	var blank  = document.getElementById('noMapSrc');
	var anchor = document.getElementById('playAnchor');
	var span   = document.getElementById('playSpan');
	
	anchor.style.display = 'none';
	span.style.display = '';

	target.filters.blendTrans.Apply();
	target.src = blank.src;
	target.filters.blendTrans.Play();

	timer = window.setTimeout("ecoReverse()", 3000);
}

function ecoReverse(id)
{
	window.clearTimeout(timer);

	var target = document.getElementById('target');
	var source = document.getElementById('original');
	
	target.filters.blendTrans.Apply();
	target.src = source.src;
	target.filters.blendTrans.Play();

	timer = window.setTimeout("ecoReset()", 1010);
}

function ecoReset(id)
{
	window.clearTimeout(timer);

	var anchor = document.getElementById('playAnchor');
	var span   = document.getElementById('playSpan');
	
	anchor.style.display = '';
	span.style.display = 'none';
}